Cholangiocarcinoma (CCA) is a cancer with high mortality owing to its aggressiveness and resistance to therapy. The liver flukes of the Opisthorchiidae family have been recognized as risk factors of CCA. Opisthorchis felineus infection occurs in Western Siberia, the biggest endemic area in the Russian Federation, and is associated with chronic inflammation of the bile ducts, which may be linked to severe hepatobiliary morbidity. We report two cases of confirmed CCA who had a chronic O. felineus infection. Both cases presented unspecific symptoms at the onset of the disease, a stage when severe pathological changes already had occurred. Both patients were living in endemic areas but did not receive any antihelminthic treatment. This report underlines the need for assessment of O. felineus infection as a causative factor of CCA. The results will provide further arguments for control of O. felineus in the Russian Federation.

BACKGROUND: Staged treatment of small bowel diseases involves the formation of an enterostomy. BishopKoop T-anastomosis and Mikulicz double-barreled enterostomy with compression clamp are widely applied. The disadvantages of Mikuliczs can be eliminated using a clip of titanium nickelide with shape memory instead of a clamp. AIM: This study aimed to evaluate the efficacy and safety of a titanium nickelide device in double-barreled enterostomy and compare the results of treatment with a T-anastomosis. MATERIALS AND METHODS: The study included newborns and infants. The clip was applied on 958 days postoperatively. Differences were accepted as significant at p 0.05. RESULTS: Since 2000, enterostomy was performed in 79 children: 12 (15.2%) had T-anastomoses, 44 (55.7%) had double-barreled stomas, and 18 (40.9%) had a titanium nickelide clip. In the study groups, stomas were applied for ileus, atresia, and aganglionosis. In the group of double-barreled enterostomies with a clip, the stoma was closed later (p = 0.027) and the operation time was short (p = 0.013). In the T-anastomosis group, parenteral nutrition was required for a longer period (p = 0.018). Self-removal of the clip and appearance of the stool occurred on days 5 and 13. Compression anastomosis was obtained in 83.3% and stoma closure outside in 73.3%. With a double-barreled enterostomy, hepatic failure (p = 0.018) and anastomosis dysfunction (p = 0.046) were less common. T-anastomosis revealed an increase in the incidence of CDC II (p = 0.013) and III (p = 0.015) complications. DISCUSSION: The results reflect the safety of the presented method in comparison with the T-anastomosis, since the operation time and duration of the parenteral nutrition are reduced, invasive treatment is less often required for complications, and anastomosis dysfunction rarely occurs. CONCLUSIONS: Double-barreled enterostomy with a compression clip is an effective and safe alternative to T-anastomosis in children aged 1 year. The formed compression anastomosis allows closure of the stoma by suturing its outer part. The conditions for the formation of the anastomosis are the patency of the distal sections and bowel diameter 1 cm.

The aim of the work was to study the effect of fractions from Saussurea controversa and Мeadowsweet extracts on hemopoiesis and regeneration of bone tissue, which are the main target indicators in experimental osteomyelitis.Materials and methods. In the experiment we used butanol, water and element-organic fractions from the Saussurea controversa extract as well as ethyl acetate, butanol and water fractions from the Мeadowsweet extract, obtained by liquid extraction of the extracts from corresponding plants with the help of organic solvents. After modeling osteomyelitis of the right femur in rats and course treatment for 28 days, the state of bone marrow hemopoiesis was evaluated and morphological examination of the affected limb was performed.Results. The butanol fraction (at a dose of 10 mg/kg) containing flavonol glycosides, the water fraction (at a dose of 80 mg/kg) containing polysaccharides in its composition and the element-organic fraction (at a dose of 10 mg/kg) represented by organic calcium showed the highest osteogenic activity in the Saussurea controversa extract. The water fraction from the Meadowsweet extract (at a dose of 50 mg/kg) demonstrated pronounced hemopoietic activity due to stimulating erythro-, granulo- and lymphopoiesis in the bone marrow of rats with experimental osteomyelitis.

Alloys based on TiNi are widely used in various fields of technology and medicine. In the present work, we report on the preparation of TiNi-alloy-based wire with the shape-memory effect, which was used for compression clips for surgery. The composition and structure of the wire and its martensitic and physical–chemical properties were studied using SEM, TEM, optic microscopy, profilometry, mechanical tests, etc. The TiNi alloy was found to consist of B2 and B19’ and secondary-phase particles of Ti2Ni, TiNi3 and Ti3Ni4. Its matrix was slightly enriched in Ni (50.3 at.% of Ni). A homogeneous grain structure was revealed (an average grain size of 19 ± 0.3 μm) with equal quantities of grain boundaries of special and general types. The surface oxide layer provides improved biocompatibility and promotes the adhesion of protein molecules. Overall, the obtained TiNi wire was concluded to exhibit martensitic, physical and mechanical properties suitable for its use as an implant material. The wire was then used for manufacturing compression clips with the shape-memory effect and applied in surgery. The medical experiment that involved 46 children demonstrated that the use of such clips in children with double-barreled enterostomies permitted improvement in the results of surgical treatment.